Tag Archives | Optics
Faster Computers: Entanglement On a Chip

Faster Computers: Entanglement On a Chip

Unlike Bilbo’s magic ring, which entangles human hearts, engineers have created a new micro-ring that entangles individual particles of light, an important first step in a whole host of new technologies.   Entanglement — the instantaneous connection between two particles no matter their distance apart — is one of the most intriguing and promising phenomena [...]

Read full story Comments { 0 }

Half-Light Half-Matter Quantum Particles

Prospects of developing computing and communication technologies based on quantum properties of light and matter may have taken a major step forward thanks to research by City College of New York physicists led by Dr. Vinod Menon. In a pioneering study, Professor Menon and his team were able to discover half-light, half-matter particles in atomically [...]

Read full story Comments { 0 }
A Qubit Candidate Shines Brighter

A Qubit Candidate Shines Brighter

In the race to design the world’s first universal quantum computer, a special kind of diamond defect called a nitrogen vacancy (NV) center is playing a big role. NV centers consist of a nitrogen atom and a vacant site that together replace two adjacent carbon atoms in diamond crystal. The defects can record or store [...]

Read full story Comments { 0 }
Breakthrough in Optical Fiber Communications

Breakthrough in Optical Fiber Communications

Researchers from the University of Southampton have revealed a breakthrough in optical fibre communications. Academics from the University’s Optoelectronics Research Centre (ORC) have collaborated with colleagues at Eblana Photonics Inc, in Ireland, to develop an approach that enables direct modulation of laser currents to be used to generate highly advanced modulation format signals.   The [...]

Read full story Comments { 0 }
Scientists Measure Speedy Electrons in Silicon

Scientists Measure Speedy Electrons in Silicon

The entire semiconductor industry, not to mention Silicon Valley, is built on the propensity of electrons in silicon to get kicked out of their atomic shells and become free. These mobile electrons are routed and switched though transistors, carrying the digital information that characterizes our age.   An international team of physicists and chemists based [...]

Read full story Comments { 0 }
Engineers Efficiently ‘Mix’ Light at Nanoscale

Engineers Efficiently ‘Mix’ Light at Nanoscale

The race to make computer components smaller and faster and use less power is pushing the limits of the properties of electrons in a material. Photonic systems could eventually replace electronic ones, but the fundamentals of computation, mixing two inputs into a single output, currently require too much space and power when done with light. [...]

Read full story Comments { 0 }
Outsmarting Thermodynamics in Self-Assembly of Nanostructures

Outsmarting Thermodynamics in Self-Assembly of Nanostructures

If you can uniformly break the symmetry of nanorod pairs in a colloidal solution, you’re a step ahead of the game toward achieving new and exciting metamaterial properties. But traditional thermodynamic -driven colloidal assembly of these metamaterials, which are materials defined by their non-naturally-occurring properties, often result in structures with high degree of symmetries in [...]

Read full story Comments { 0 }
Gold Nanoparticles Confine Light On Nanoscale

Gold Nanoparticles Confine Light On Nanoscale

A multidisciplinary team at the Centre d’Elaboration de Matériaux et d’Etudes Structurales (CEMES, CNRS), working in collaboration with physicists in Singapore and chemists in Bristol (UK), have shown that crystalline gold nanoparticles aligned and then fused into long chains can be used to confine light energy down to the nanometer scale while allowing its long-range [...]

Read full story Comments { 0 }
Blue LED Breakthrough for Efficient Electronics

Blue LED Breakthrough for Efficient Electronics

In a step that could lead to longer battery life in smartphones and lower power consumption for large-screen televisions, researchers at the University of Michigan have extended the lifetime of blue organic light emitting diodes by a factor of 10.   Blue OLEDs are one of a trio of colors used in OLED displays such [...]

Read full story Comments { 0 }
Quantum Info Transmitted Through Atmosphere

Quantum Info Transmitted Through Atmosphere

It could be difficult for the NSA to hack encrypted messages in the future — at least if a technology being investigated by scientists at the Max Planck Institute for the Science of Light in Erlangen and the University Erlangen-Nürnberg is successful: quantum cryptography. The physicists are now laying the foundation to make this technique, [...]

Read full story Comments { 0 }